Does stress cause lactic acid to be produced in muscles? I mean normally, not just Fibros. I thought I remembered hearing that about stress, so I tried to google up an answer, got tired, and then I thought there are so many knowledgeable people here... why not ask you!! -----------cuz: I was thinking that if anxiety/stress in general causes more lactic acid in muscles generally, then when chronic pain people get anxious, their muscles hurt and get cramps. That might appear to be psychological to someone who doesn't understand the illness. But, knowing that our sensing neurons react to lactic acid [as in Dr. Light's research] that it would help everyone understand why we cannot tolerate anxiety, if indeed there is normally more lactic acid when stressed. -------- Thx!